0%

20-letter words containing a, c, d, i

  • california barracuda — a small, slender barracuda, Sphyraena argentea, of coastal seas from Alaska to Baja California, valued as a food fish.
  • california gold fern — an evergreen fern, Pityrogramma triangularis, growing from British Columbia to California, having the underside of the leaves covered with a deep yellow, powderlike substance.
  • can do sth blindfold — If you say that you can do something blindfold, you are emphasizing that you can do it easily, for example because you have done it many times before.
  • carbocyclic compound — any of a group of organic chemical compounds in which all the atoms composing the ring are carbon atoms, as benzene or cyclopropane.
  • carbohydrate loading — the practice of eating high amounts of carbohydrates, sometimes after a period of low carbohydrate intake, for several days immediately before competing in an athletic event, especially a marathon, in order to store glycogen in the body, thereby providing greater reserves of energy.
  • carbon tetrachloride — a colourless volatile nonflammable sparingly soluble liquid made from chlorine and carbon disulphide; tetrachloromethane. It is used as a solvent, cleaning fluid, and insecticide. Formula: CCl4
  • care and maintenance — the state of a building, ship, machinery, etc, that is not in current use although it is kept in good condition to enable it to be quickly brought into service if there is demand for it
  • carl friedrich gauss — (person)   A German mathematician (1777 - 1855), one of all time greatest. Gauss discovered the method of least squares and Gaussian elimination. Gauss was something of a child prodigy; the most commonly told story relates that when he was 10 his teacher, wanting a rest, told his class to add up all the numbers from 1 to 100. Gauss did it in seconds, having noticed that 1+...+100 = 100+...+1 = (101+...+101)/2. He did important work in almost every area of mathematics. Such eclecticism is probably impossible today, since further progress in most areas of mathematics requires much hard background study. Some idea of the range of his work can be obtained by noting the many mathematical terms with "Gauss" in their names. E.g. Gaussian elimination (linear algebra); Gaussian primes (number theory); Gaussian distribution (statistics); Gauss [unit] (electromagnetism); Gaussian curvature (differential geometry); Gaussian quadrature (numerical analysis); Gauss-Bonnet formula (differential geometry); Gauss's identity (hypergeometric functions); Gauss sums (number theory). His favourite area of mathematics was number theory. He conjectured the Prime Number Theorem, pioneered the theory of quadratic forms, proved the quadratic reciprocity theorem, and much more. He was "the first mathematician to use complex numbers in a really confident and scientific way" (Hardy & Wright, chapter 12). He nearly went into architecture rather than mathematics; what decided him on mathematics was his proof, at age 18, of the startling theorem that a regular N-sided polygon can be constructed with ruler and compasses if and only if N is a power of 2 times a product of distinct Fermat primes.
  • cartesian coordinate — Usually, Cartesian coordinates. a member of a system of coordinates for locating a point on a plane (Cartesian plane) by its distance from each of two intersecting lines, or in space by its distance from each of three planes intersecting at a point.
  • case based reasoning — (artificial intelligence)   (CBR) A technique for problem solving which looks for previous examples which are similar to the current problem. This is useful where heuristic knowledge is not available. There are many situations where experts are not happy to be questioned about their knowledge by people who want to write the knowledge in rules, for use in expert systems. In most of these situations, the natural way for an expert to describe his or her knowledge is through examples, stories or cases (which are all basically the same thing). Such an expert will teach trainees about the expertise by apprenticeship, i.e. by giving examples and by asking the trainees to remember them, copy them and adapt them in solving new problems if they describe situations that are similar to the new problems. CBR aims to exploit such knowledge. Some key research areas are efficient indexing, how to define "similarity" between cases and how to use temporal information.
  • casing head pressure — The casing head pressure is the pressure on the casing, which is measured at the wellhead.
  • cat's-tail speedwell — a widely cultivated Eurasian plant, Veronica spicata, of the figwort family, having blue flowers in long, spikelike clusters.
  • catherine de medicis — (Caterina de' Medici) 1518–89, queen of Henry II of France (mother of Francis II, Charles IX, and Henry III).
  • catherine de' medici — 1519–89, queen of Henry II of France; mother of Francis II, Charles IX, and Henry III of France; regent of France (1560–74). She was largely responsible for the massacre of Protestants on Saint Bartholomew's Day (1572)
  • cavendish experiment — the experiment, conducted by Henry Cavendish, that determined the constant of gravitation by using a torsion balance and measuring the torsion produced by two masses placed at given distances from the masses on the balance.
  • central bedfordshire — a unitary authority of S central England. Pop: 252 100 (2007 est). Area: 712 sq km (275 sq miles)
  • central india agency — a former group of 89 states in India, under the supervision of a British political agent until 1947: most important were Indore, Bhopal, and Rewa
  • certified accountant — (in Britain) a member of the Chartered Association of Certified Accountants, who is authorized to audit company accounts
  • chapter of accidents — a series of misfortunes
  • chauffeur-driven car — a car driven by a chauffeur
  • chemically dependent — addicted to a drug or drugs
  • child support agency — the British government agency concerned with the welfare of children
  • child-abuse register — (in Britain) a list of children deemed to be at risk of abuse or injury from their parents or guardians, compiled and held by a local authority, area health authority, or NSPCC Special Unit
  • childhood sweetheart — a boyfriend or girlfriend from an early stage of life
  • chromatic adaptation — the alteration by photosynthesizing organisms of the proportions of their photosynthetic pigments in response to the intensity and colour of the available light, as shown by algae in the littoral zone, which change from green to red as the zone is descended
  • chromaticity diagram — a diagram in which values of two chromaticity coordinates are marked on a pair of rectangular axes, a point in the plane of these axes representing the chromaticity of any colour
  • chrono-logical order — the arrangement of things following one after another in time: Put these documents in chronological order.
  • cleansing department — the department of a local authority that collects refuse
  • codex juris canonici — the official code of canon law in force in the Roman Catholic Church; introduced in 1918 and revised in 1983
  • cognitive dissonance — an uncomfortable mental state resulting from conflicting cognitions; usually resolved by changing some of the cognitions
  • coincident indicator — an economic indicator, as gross national product, that typically fluctuates in correlation with the total economy.
  • college of cardinals — the collective body of cardinals having the function of electing and advising the pope
  • college of education — a professional training college for teachers
  • colloidal suspension — a mixture having particles of one component, with diameters between 10 −7 and 10 −9 metres, suspended in a continuous phase of another component. The mixture has properties between those of a solution and a fine suspension
  • combination sandwich — a big sandwich with a mixed filling
  • comparative judgment — any judgment about whether there is a difference between two or more stimuli
  • complaints procedure — a prescribed method of lodging a complaint to an institution
  • computing dictionary — Free On-line Dictionary of Computing
  • condensation nucleus — nucleus (def 5).
  • conductive education — an educational system, developed in Hungary by András Petö, in which teachers (conductors) teach children and adults with motor disorders to function independently, by guiding them to attain their own goals in their own way
  • congressional record — (in the US) the government journal that publishes all proceedings of Congress
  • conservative judaism — a movement reacting against the radicalism of Reform Judaism, rejecting extreme change and advocating moderate relaxations of traditional Jewish law, by an extension of the process by which its adherents claim traditional Orthodox Judaism evolved
  • continuing education — Continuing education is education for adults in a variety of subjects, most of which are practical, not academic.
  • continuing-education — adult education.
  • contradistinguishing — Present participle of contradistinguish.
  • convective discharge — the repulsion of ions of a gas by a highly charged body, creating a discernible wind.
  • coordination complex — one of a number of complex compounds in which an atom or group of atoms is bound to the central atom by a shared pair of electrons supplied by the coordinated group and not by the central atom
  • copulative asyndeton — a staccato effect produced by omitting copulative connectives between two or more items in a group, as in “Friends, Romans, countrymen.”.
  • corresponding angles — a pair of nonadjacent angles, one interior and one exterior, on the same side of a transversal: these paired angles are equal if the lines cut by the transversal are parallel
  • counterdemonstration — a demonstration that is held in reaction to another demonstration
Was this page helpful?
Yes No
Thank you for your feedback! Tell your friends about this page
Tell us why?